FormNo. 203-821-258 02/05-REV0
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Rtx-PCB>>
Rtx-5>>
TIC
Diazinon
Malathion
Chlorpyrifos
Figure3.
Contour plot of organophosphate pesticides in an ash leaves extract. Note how
separations are occurring in two dimensions, andwhereMalathion and Chlorpyrifos have been
separated in the second dimension from substantial matrix interferences (at a first dimension
retention time of approximately 800 seconds).
Malathion
Chlorpyrifos
Figure4.
Zoom of contour plot from Figure 3. Malathion and Chlorpyrifos are separated in the
second dimension from substantial matrix interferences as noted by thewhite arrows.
